Upper West Siders rejoice! A stretch of Columbus Ave. is about to get a green makeover with solar technology infusing the sidewalks. The Columbus Avenue Business Improvement District (BID) in partnership with the Department of Transportation (DOT) is moving forward with Phase One of their Streetscape Master Plan which includes a new row of trees, benches, in-ground solar lighting on the sidewalks, and rainwater-purifying channels to help beautify the block.